Paul immanuel schmaltz



(No Model.)

P. I. SOHMALTZ.;

REVERSIBLBVALVE GEAR.

No. 347,386. Patented Aug. 17, 1886.

UNITED STATES PATENT OFFICE.

PAUL LMMANUEL SOHMALTZ, OF ALBANY, N EV YORK.

R EVIERSI BLE VALVE-G EAR.

.ILPECIPICATION forming part of Letters Patent No. 347,386, dated August 17, 1886.

Application filed May 26, 1886. Serial No. 203,346. (No mode TO'aZZ whom, it' may concern:

Be it known that I; PAUL IMMANUEL SCHMALTZ, a snbject'of the Emperor of Germany, residing at 98 Grand street, Albany,

5 county of Albany, State of New York, have inventeda new and useful Gut-01f and Reversible Valve-Gear 'for Engines; and I do hereby declare that the following is a full,-clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

The object of my invention is to reduce the frictional wear and resulting defects of cut-oil and reversible engine-valve gears to a minimum, and to the same end to reduce the number of working parts and wearing-surfaces, as found in the existing cut-off and reversing valvegears, thus creating. a more reliable valve-gear, which can be operated; by hand and automatically. 7

My previous application, No. 196,908,March 29, 1886, for engine-valve gear of the same kind, makes use of the main crank-pin of the engine by pivoting a counter-crank on same,

25 and giving a motion to this counter-crank by a sleeve sliding on part of engine-shaft, or otherwise in line with same, and. providing this sleeve with spiral grooves to fit similar ones on pivot-extension. My present aim is To attain my object, I secure a crank, a, of

suitable shape,on the engine-shaft I), provided with a pivot, a, male or female, with which a counter-crank, d, is connected provided with an eccentric or eccentric-pin, 6. receives also in a suitable place one or more spiralteeth or grooves, f, on a cylindrical surface concentric to center line of pivot e. A sleeve, 9, with suitable parallel guide in shape of a feather or pin, it, as indicated, and spiral cam i, or cams, male or female, to fit spiral teeth or grooves f, and provided with a ringshaped groove, j, can be moved parallel to center line of pivot, whereby the cams engage, and an altered position of the eccentric can be obtained. The mechanism to attain This pivot this slidingmotion of said sleeve may be of 5 any practical shapefor instance, a ring, 76, fitting into groove j, with recesses or projections Z attached, having inclined surfaces Z, to suit similar ones on a forked bar, m, which is guided in a plane, n, divergent from the direction of said inclines. I

What I do claim, and desire to secure by Letters Patent, is The combination of crank a, an engineshaft, b, back of the main bearing-pivot c, counter-orank d, eccentric e, spiral teeth f, sleeve g,with parallel guide h, cam i, and groove j, as set forth.

PAUL IMMANUEL SCHMALTZ.

W'itnesses:

GEO. E. REID, Jos. R. GEOGHAN.

Corrections in Letters Patent No." 347,386.

Donntersigned It is hereby certified that in Letters Patent No. 347,3S6pgranted August 17 1886,

upon the application ,of Paul Immanuel Schmaltzof Albany New York, for an improvement in Reversible Valve Grear, errors appear in the printed specification requiring the following corrections, viz: In line 64 the word an should read on I in line 65 the comma after the word shaft should be stricken out; and same line, the

hyphen between the words bearing and pivot should be stricken out and a comma inserted instead; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

$igned, countersigned, and sealed this 7th day of September, A. D. 1886.

D. L. HAWKINS, Acting Secretary of the Interior.

' I [SEAL] 'R; B. VANCE,

Acting Commissioner of Patents. 

